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. 2021 Mar 29;47(7):1379–1386. doi: 10.1038/s41386-021-00988-6

Fig. 1. Flowchart of participants with 22q11DS for inclusion in the current study.

Fig. 1

N SZ = individuals diagnosed with a schizophrenia spectrum disorder. aData (cross-sectional and longitudinal) from these 1365 individuals were used for the construction of the normative chart (Methods section 2.2.i). bFor the current study we limited the age range to 6–38 years, as the main purpose of the study is to create one easily applicable normative chart. Above the age of 38 years, the number of participants in each age-year was too small (n < 10) to obtain a reliable normative value for that particular year. Below the age of 6 years, the number of participants in each age-year was also small and scores showed disproportionally greater variability (consistent with greater testing effects observed in IQ-tests in younger children). cData (longitudinal) from these 708 individuals were used for calculating the delta-z-scores (“Methods” section 2.2.ii).